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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Ancient divergence and recent population expansion in a leaf frog endemic to the southern Brazilian Atlantic forest

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Author(s):
Brunes, Tuliana O. [1, 2] ; Thome, Maria Tereza C. [3] ; Alexandrino, Joao [4] ; Haddad, Celio F. B. [3] ; Sequeira, Fernando [1]
Total Authors: 5
Affiliation:
[1] Univ Porto, Lab Associado, Ctr Invest Biodiversidade & Recursos Genet, CIBIO InBIO, P-4485661 Vairao - Portugal
[2] Univ Porto, Dept Biol, Fac Ciencias, P-4169007 Oporto - Portugal
[3] Univ Estadual Paulista, UNESP, Inst Biociencias, Dept Zool, BR-13506900 Rio Claro, SP - Brazil
[4] Univ Fed Sao Paulo, UNIFESP, Dept Ciencias Biol, BR-09972270 Diadema - Brazil
Total Affiliations: 4
Document type: Journal article
Source: ORGANISMS DIVERSITY & EVOLUTION; v. 15, n. 4, p. 695-710, DEC 2015.
Web of Science Citations: 7
Abstract

The evolutionary history of Neotropical organisms has been often interpreted through broad-scale generalizations. The most accepted model of diversification for the Brazilian Atlantic forest (BAF) rely on putative historical stability of northern areas and massive past habitat replacement of its southern range. Here, we use the leaf frog Phyllomedusa distincta, endemic to the southern BAF, to better understand diversification patterns within this underexplored rainforest region. We used an integrative approach coupling fine-scale sampling and multilocus sequence data, with traditional and statistical phylogeographic (multilocus approximate Bayesian computation) methods to explore alternative hypotheses of diversification. We also employed species paleodistribution modeling to independently verify habitat stability upon a spatially explicit model. Our data support two divergent lineages with coherent geographic distribution that span throughout northern and southern ranges. Demographic estimates suggested the Southern lineage has experienced a recent population expansion, whereas the Northern lineage remained more stable. Hypothesis testing supports a scenario of ancient vicariance with recent population expansion. The paleodistribution model revealed habitat discontinuity during the Last Glacial Maximum (LGM) with one area of putative stability within the range of the Northern lineage. Evidence on genetic structure, demography, and paleodistribution of P. distincta support a historically heterogeneous landscape for the southern BAF, with both areas of forest stability and regions where forest occupation is probably recent. We also associate the southern end of the Cubato shear zone with a phylogeographic break in the BAF. Taken together, our results argue for the idea of multiple mechanisms generating diversity in this biome and underscore the need of fine-scale data in revealing more detailed pictures. (AU)

FAPESP's process: 05/52727-5 - Biogeography, phylogeography and diversification patterns of anuran species widespread in the Brazilian Atlantic forest
Grantee:João Miguel de Barros Alexandrino
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 08/50928-1 - Speciation of frogs in high-altitude environments
Grantee:Célio Fernando Baptista Haddad
Support type: Research Projects - Thematic Grants
FAPESP's process: 13/50741-7 - Diversity and conservation of Brazilian amphibians
Grantee:Célio Fernando Baptista Haddad
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 11/51392-0 - History of Caatinga: comparative phylogeography of amphibians facing a xeric biome
Grantee:Maria Tereza Chiarioni Thomé
Support type: Scholarships in Brazil - Post-Doctorate